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C++ Keywords

Complete List of Keywords in C++

C++ Keywords and their Descriptions

alignas: Specifies alignment for a type or variable (C++11).
alignof: Returns the alignment requirement of a type (C++11).
and: Alternative representation for logical AND operator (&&).
and_eq: Alternative representation for the bitwise AND assignment operator (&=).
asm: Specifies assembly language instructions (compiler-specific).
auto: Specifies that the type of a variable will be automatically deduced (C++11).
bitand: Alternative representation for bitwise AND operator (&).
bitor: Alternative representation for bitwise OR operator (|).
bool: Defines a boolean type with values true and false.
break: Exits from a loop or a switch statement.
case: Defines a branch in a switch statement.
catch: Catches exceptions thrown by a try block.
char: Defines a character data type.
char8_t: Defines an 8-bit character type (C++20).
char16_t: Defines a 16-bit character type (C++11).
char32_t: Defines a 32-bit character type (C++11).
class: Declares a class type.
compl: Alternative representation for bitwise NOT operator (~).
concept: Defines a concept for template constraints (C++20).
const: Declares a constant variable or specifies that a function parameter or return value cannot be modified.
consteval: Specifies immediate evaluation of a constant expression (C++20).
constexpr: Specifies that a function or variable can be evaluated at compile time (C++11).
constinit: Specifies constant initialization of a variable (C++20).
continue: Skips the remaining code in the current loop iteration and proceeds to the next iteration.
co_await: Suspends execution until the awaited coroutine completes (C++20).
co_return: Returns a value from a coroutine (C++20).
co_yield: Yields a value from a coroutine (C++20).
decltype: Inspects the declared type of an expression (C++11).
default: Specifies the default branch in a switch statement or the default implementation of a special member function.
delete: Deallocates memory or disables a function.
do: Defines a loop that executes at least once.
double: Defines a double-precision floating-point type.
dynamic_cast: Safely casts between pointers or references of related types.
else: Defines the alternative branch in an if-else statement.
enum: Defines an enumeration type.
explicit: Specifies that a constructor or conversion function cannot be used implicitly.
export: Specifies exported templates or modules (C++20).
extern: Specifies that a variable or function has external linkage.
false: Boolean constant representing logical false.
float: Defines a single-precision floating-point type.
for: Defines a loop that iterates a specific number of times.
friend: Grants access to private and protected members of a class.
goto: Transfers control to a labeled statement.
if: Defines a conditional branch in the code.
inline: Suggests to the compiler to expand the function body at the call site.
int: Defines an integer type.
long: Defines a long integer type.
mutable: Specifies that a member of a constant object can be modified.
namespace: Defines a scope for identifiers to avoid name collisions.
new: Allocates memory dynamically.
noexcept: Specifies that a function does not throw exceptions (C++11).
not: Alternative representation of the logical NOT operator (!).
not_eq: Alternative representation of the inequality operator (!=).
nullptr: Defines a null pointer constant (C++11).
operator: Overloads operators for user-defined types.
or: Alternative representation of the logical OR operator (||).
or_eq: Alternative representation of the bitwise OR assignment operator (|=).
private: Defines private access specifiers in a class.
protected: Defines protected access specifiers in a class.
public: Defines public access specifiers in a class.
register: Suggests to the compiler to store a variable in a CPU register.
reinterpret_cast: Performs a type conversion that is not checked for safety.
requires: Used to define constraints for templates and concepts.
return: Returns a value from a function.
short: Defines a short integer type.
signed: Specifies that a variable is a signed integer.
sizeof: Returns the size of a type or variable in bytes.
static: Specifies that a variable retains its value between function calls or defines a class-level variable.
static_assert: Performs a compile-time assertion (C++11).
static_cast: Performs a checked type conversion.
struct: Defines a structure type.
switch: Defines a multi-way branch statement.
template: Defines a template for generic programming.
this: Refers to the calling object in a member function.
thread_local: Specifies that a variable is local to a thread (C++11).
throw: Throws an exception.
true: Boolean constant representing logical true.
try: Defines a block to test for exceptions.
typedef: Defines an alias for a type.
typeid: Returns runtime type information of an expression.
typename: Specifies a type in a template.
union: Defines a union type.
unsigned: Specifies that a variable is an unsigned integer.
using: Imports a namespace or defines an alias for a type (C++11).
virtual: Specifies that a function can be overridden in a derived class.
void: Specifies that a function does not return a value.
volatile: Specifies that a variable can be changed unexpectedly.
wchar_t: Defines a wide character type.
while: Defines a loop that executes while a condition is true.
xor: Alternative representation for the bitwise XOR operator (^).
xor_eq: Alternative representation for the bitwise XOR assignment operator (^=).

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